A few posts ago, I mentioned the Mirrormask trailer being up. Turns out it was an early teaser trailer, hated by Gaiman and McKean. I thought it was a flawed trailer, which still looked awesome. I had no idea what I was talking about. The REAL Mirrormask trailer is online. Still not available in true quality (or in Quicktime, which is about the same when talking about trailers). But it doesn't have the stupid narration, doesn't indicate that the Henson company is the creative force behind the movie, and does mention McKean.
Also, it gives a much better peek at the awesome visuals, and has a nice bit of the funny and the creepy. Check it out.